netxen: pci probe and firmware init changes

Add initialization code in pci probe for new chip and retain
compatibility with old revisions.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/netxen/netxen_nic.h

@@ -801,6 +801,7 @@ struct netxen_hardware_context {
 	unsigned long db_len;
 	unsigned long pci_len0;
 
+	u8 cut_through;
 	int qdr_sn_window;
 	int ddr_mn_window;
 	unsigned long mn_win_crb;
@@ -872,7 +873,14 @@ struct netxen_recv_context {
 };
 
 #define NETXEN_NIC_MSI_ENABLED		0x02
-#define NETXEN_DMA_MASK	0xfffffffe
+#define NETXEN_NIC_MSIX_ENABLED		0x04
+#define NETXEN_IS_MSI_FAMILY(adapter) \
+	((adapter)->flags & (NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED))
+
+#define MSIX_ENTRIES_PER_ADAPTER	8
+#define NETXEN_MSIX_TBL_SPACE		8192
+#define NETXEN_PCI_REG_MSIX_TBL		0x44
+
 #define NETXEN_DB_MAPSIZE_BYTES    	0x1000
 
 struct netxen_dummy_dma {
@@ -885,6 +893,7 @@ struct netxen_adapter {
 
 	struct net_device *netdev;
 	struct pci_dev *pdev;
+	int pci_using_dac;
 	struct napi_struct napi;
 	struct net_device_stats net_stats;
 	unsigned char mac_addr[ETH_ALEN];
@@ -895,6 +904,8 @@ struct netxen_adapter {
 	uint8_t		mc_enabled;
 	uint8_t		max_mc_count;
 
+	struct netxen_legacy_intr_set legacy_intr;
+
 	struct work_struct watchdog_task;
 	struct timer_list watchdog_timer;
 	struct work_struct  tx_timeout_task;
@@ -903,6 +914,8 @@ struct netxen_adapter {
 	u32 crb_win;
 	rwlock_t adapter_lock;
 
+	uint64_t dma_mask;
+
 	u32 cmd_producer;
 	__le32 *cmd_consumer;
 	u32 last_cmd_consumer;
@@ -919,6 +932,12 @@ struct netxen_adapter {
 	int driver_mismatch;
 	u32 temp;
 
+	u32 fw_major;
+
+	u8 msix_supported;
+	u8 max_possible_rss_rings;
+	struct msix_entry msix_entries[MSIX_ENTRIES_PER_ADAPTER];
+
 	struct netxen_adapter_stats stats;
 
 	u16 link_speed;
@@ -1092,8 +1111,10 @@ unsigned long netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
 void netxen_free_adapter_offload(struct netxen_adapter *adapter);
 int netxen_initialize_adapter_offload(struct netxen_adapter *adapter);
 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val);
+int netxen_receive_peg_ready(struct netxen_adapter *adapter);
 int netxen_load_firmware(struct netxen_adapter *adapter);
 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose);
+
 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp);
 int netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
 				u8 *bytes, size_t size);
@@ -1107,14 +1128,19 @@ void netxen_halt_pegs(struct netxen_adapter *adapter);
 
 int netxen_rom_se(struct netxen_adapter *adapter, int addr);
 
-/* Functions from netxen_nic_isr.c */
-void netxen_initialize_adapter_sw(struct netxen_adapter *adapter);
+int netxen_alloc_sw_resources(struct netxen_adapter *adapter);
+void netxen_free_sw_resources(struct netxen_adapter *adapter);
+
+int netxen_alloc_hw_resources(struct netxen_adapter *adapter);
+void netxen_free_hw_resources(struct netxen_adapter *adapter);
+
+void netxen_release_rx_buffers(struct netxen_adapter *adapter);
+void netxen_release_tx_buffers(struct netxen_adapter *adapter);
+
 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter);
 int netxen_init_firmware(struct netxen_adapter *adapter);
-void netxen_free_hw_resources(struct netxen_adapter *adapter);
 void netxen_tso_check(struct netxen_adapter *adapter,
 		      struct cmd_desc_type0 *desc, struct sk_buff *skb);
-int netxen_nic_hw_resources(struct netxen_adapter *adapter);
 void netxen_nic_clear_stats(struct netxen_adapter *adapter);
 void netxen_watchdog_task(struct work_struct *work);
 void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx,

drivers/net/netxen/netxen_nic_hw.c

@@ -359,8 +359,6 @@ static u64 ctx_addr_sig_regs[][3] = {
 #define ADDR_IN_RANGE(addr, low, high)	\
 	(((addr) <= (high)) && ((addr) >= (low)))
 
-#define NETXEN_FLASH_BASE	(NETXEN_BOOTLD_START)
-#define NETXEN_PHANTOM_MEM_BASE	(NETXEN_FLASH_BASE)
 #define NETXEN_MAX_MTU		8000 + NETXEN_ENET_HEADER_SIZE + NETXEN_ETH_FCS_SIZE
 #define NETXEN_MIN_MTU		64
 #define NETXEN_ETH_FCS_SIZE     4
@@ -381,8 +379,6 @@ static u64 ctx_addr_sig_regs[][3] = {
 
 #define NETXEN_NIC_WINDOW_MARGIN 0x100000
 
-void netxen_free_hw_resources(struct netxen_adapter *adapter);
-
 int netxen_nic_set_mac(struct net_device *netdev, void *p)
 {
 	struct netxen_adapter *adapter = netdev_priv(netdev);
@@ -564,42 +560,23 @@ int netxen_nic_change_mtu(struct net_device *netdev, int mtu)
  * check if the firmware has been downloaded and ready to run  and
  * setup the address for the descriptors in the adapter
  */
-int netxen_nic_hw_resources(struct netxen_adapter *adapter)
+int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 {
 	struct netxen_hardware_context *hw = &adapter->ahw;
 	u32 state = 0;
 	void *addr;
-	int loops = 0, err = 0;
+	int err = 0;
 	int ctx, ring;
 	struct netxen_recv_context *recv_ctx;
 	struct netxen_rcv_desc_ctx *rcv_desc;
 	int func_id = adapter->portnum;
 
-	DPRINTK(INFO, "crb_base: %lx %x", NETXEN_PCI_CRBSPACE,
-		PCI_OFFSET_SECOND_RANGE(adapter, NETXEN_PCI_CRBSPACE));
-	DPRINTK(INFO, "cam base: %lx %x", NETXEN_CRB_CAM,
-		pci_base_offset(adapter, NETXEN_CRB_CAM));
-	DPRINTK(INFO, "cam RAM: %lx %x", NETXEN_CAM_RAM_BASE,
-		pci_base_offset(adapter, NETXEN_CAM_RAM_BASE));
-
-
-	for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
-		loops = 0;
-		state = 0;
-		do {
-			/* Window 1 call */
-			state = adapter->pci_read_normalize(adapter,
-					CRB_RCVPEG_STATE);
-			msleep(1);
-			loops++;
-		} while (state != PHAN_PEG_RCV_INITIALIZED && loops < 20);
-		if (loops >= 20) {
-			printk(KERN_ERR "Rcv Peg initialization not complete:"
-			       "%x.\n", state);
-			err = -EIO;
+	err = netxen_receive_peg_ready(adapter);
+	if (err) {
+		printk(KERN_ERR "Rcv Peg initialization not complete:%x.\n",
+				state);
 		return err;
 	}
-	}
 	adapter->intr_scheme = adapter->pci_read_normalize(adapter,
 			CRB_NIC_CAPABILITIES_FW);
 	adapter->msi_mode = adapter->pci_read_normalize(adapter,
@@ -992,9 +969,11 @@ int netxen_load_firmware(struct netxen_adapter *adapter)
 {
 	int i;
 	u32 data, size = 0;
-	u32 flashaddr = NETXEN_FLASH_BASE, memaddr = NETXEN_PHANTOM_MEM_BASE;
+	u32 flashaddr = NETXEN_BOOTLD_START, memaddr = NETXEN_BOOTLD_START;
+
+	size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START)/4;
 
-	size = NETXEN_FIRMWARE_LEN;
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 		adapter->pci_write_normalize(adapter,
 				NETXEN_ROMUSB_GLB_CAS_RST, 1);
 
@@ -1007,12 +986,17 @@ int netxen_load_firmware(struct netxen_adapter *adapter)
 		memaddr += 4;
 		cond_resched();
 	}
-	udelay(100);
-	/* make sure Casper is powered on */
+	msleep(1);
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		adapter->pci_write_normalize(adapter,
+				NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
+	else {
 		adapter->pci_write_normalize(adapter,
 				NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
 		adapter->pci_write_normalize(adapter,
 				NETXEN_ROMUSB_GLB_CAS_RST, 0);
+	}
 
 	return 0;
 }
@@ -2241,6 +2225,8 @@ void netxen_nic_flash_print(struct netxen_adapter *adapter)
 	adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_MINOR, &fw_minor, 4);
 	adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_SUB, &fw_build, 4);
 
+	adapter->fw_major = fw_major;
+
 	if (adapter->portnum == 0) {
 		get_brd_name_by_type(board_info->board_type, brd_name);
 
@@ -2262,16 +2248,5 @@ void netxen_nic_flash_print(struct netxen_adapter *adapter)
 				adapter->netdev->name);
 		return;
 	}
-
-	switch (adapter->ahw.board_type) {
-	case NETXEN_NIC_GBE:
-		dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
-				adapter->netdev->name);
-		break;
-	case NETXEN_NIC_XGBE:
-		dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
-				adapter->netdev->name);
-		break;
-	}
 }